Amortization & extra-payment calculator
Enter your loan amount, APR, and term to see a full year-by-year amortization schedule showing how each payment splits between principal and interest. Then use the extra-payment slider to model what happens when you pay a little more each month — you'll see exactly how many months you shave off and how much interest you avoid paying.
Loan details
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%
Personal loans typically run 7–36% APR depending on credit.Loan term
Extra monthly payment
Adding even a small extra payment each month cuts your payoff time and reduces total interest.
$0$1,000
$
- Monthly payment
- $556.11
- Payoff — no extra
- 5 yrs
- Total interest
- $8,367
- Interest saved
- —
Where your money goes
Principal
Interest
Principal $25,000Total interest $8,367
Amortization schedule — by year
| Year | Paid | Interest | Principal | Remaining |
|---|---|---|---|---|
| 1 | $6,673 | $2,791 | $3,882 | $21,118 |
| 2 | $6,673 | $2,299 | $4,375 | $16,743 |
| 3 | $6,673 | $1,744 | $4,929 | $11,814 |
| 4 | $6,673 | $1,119 | $5,555 | $6,259 |
| 5 | $6,673 | $414 | $6,259 | $0 |
This calculator runs entirely in your browser — nothing you enter is sent, stored, or shared. Results are estimates for education only, not an offer, quote, or guarantee of any rate, term, or savings. Actual figures depend on your credit and the lender.